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Kronberger 61, also known as the "soccer ball", is a planetary nebula discovered by an amateur astronomer in January, 2011, with the newer images having been taken by the Gemini Observatory. [2] The nebula is named for Austrian Matthias Kronberger, [3] who is a member of the amateur group Deep Sky Hunters. The object is estimated to lie 13,000 ...
The French astronomer Charles Messier discovered M87 in 1781, and cataloged it as a nebula. M87 is about 16.4 million parsecs (53 million light-years) from Earth and is the second-brightest galaxy within the northern Virgo Cluster , having many satellite galaxies .
The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus.The common name comes from a drawing that somewhat resembled a crab with arms produced by William Parsons, 3rd Earl of Rosse, in 1842 or 1843 using a 36-inch (91 cm) telescope. [6]
The earliest known photograph of the Great Andromeda "Nebula" (with M110 to the upper right), by Isaac Roberts (29 December 1888) In 1888, Isaac Roberts took one of the first photographs of Andromeda, which was still commonly thought to be a nebula within our galaxy. Roberts mistook Andromeda and similar "spiral nebulae" as star systems being ...
In 1610, Nicolas-Claude Fabri de Peiresc discovered the Orion Nebula using a telescope. This nebula was also observed by Johann Baptist Cysat in 1618. However, the first detailed study of the Orion Nebula was not performed until 1659 by Christiaan Huygens, who also believed he was the first person to discover this nebulosity. [11]
Using the Hooker Telescope at Mount Wilson, Hubble identified Cepheid variables, a standard candle discovered by Henrietta Swan Leavitt. [7] Comparing their apparent luminosity to their intrinsic luminosity gives their distance from Earth. [25] [26] Hubble found Cepheids in several nebulae, including the Andromeda Nebula and Triangulum Nebula.
The Ring Nebula (also catalogued as Messier 57, M57 and NGC 6720) is a planetary nebula in the northern constellation of Lyra. [4] C] Such a nebula is formed when a star, during the last stages of its evolution before becoming a white dwarf , expels a vast luminous envelope of ionized gas into the surrounding interstellar space .
The event had been under discussion for long time [7] [6] [19] but in 2021 another candidate was proposed for the remnant, the recently discovered nebula Pa 30 which has been found to be about 1000 years old. [8] The Danish astronomer Tycho Brahe was noted for his careful observations of the night sky from his observatory on the island of Hven ...